c# - Why am I getting error CS0246: The type or namespace name could not be found?

Question

I am using Snarl C# API to send notifications to snarl.

Now I have saved the content of above url in a file named SnarlNetwork.cs and the content of my test.cs file are:

using SnarlNetworkProtocol;
using System;
class test
{
    public static void Main(String[] args)
    {
        SNP snarl_object = new SNP();
        string hostname = "localhost";
        string hostport = "9887";
        string appName = "Spotify";

        bool val = snarl_object.register(hostname, hostport, appName);

        if (val == true)
        {
            string title = "hello";
            string message = "world";
            string timeout = "5";
            bool newval = snarl_object.notify(hostname, hostport, appName, null, title, message, timeout);

            if (newval == true)
            {
                Console.WriteLine("sucessfull");

            }
        }
    }

}

Now when I try to compile my test.cs file using csc test.cs I get the following error:

C:UsersNoobcsharp>csc test.cs
Microsoft (R) Visual C# 2008 Compiler version 3.5.30729.4926
for Microsoft (R) .NET Framework version 3.5
Copyright (C) Microsoft Corporation. All rights reserved.

test.cs(1,7): error CS0246: The type or namespace name 'SnarlNetworkProtocol' could not be found (are you missing a using directive or an assembly reference?)

So, what am I doing wrong here because according to me I am not missing any using directive.

question from:https://stackoverflow.com/questions/11854308/why-am-i-getting-error-cs0246-the-type-or-namespace-name-could-not-be-found

Answer 1

This is the problem:

C:UsersNoobcsharp>csc test.cs

You haven't added a reference to the DLL. You need something like:

C:UsersNoobcsharp>csc test.cs /r:SnarlNetwork.dll

(or whatever the assembly is called).

Alternatively, if you haven't got it as a separate library, just compile both files:

C:UsersNoobcsharp>csc test.cs SnarlNetwork.cs

If you haven't compiled an assembly but want to, you can use:

csc /target:library /out:SnarlNetwork.dll SnarlNetwork.cs

csc Test.cs /r:SnarlNetwork.dll

(In fact, specifying the output file is unnecessary in this particular case, but it's still clearer...)